Gas heater



Aug. 21, 1928.

W. KENNEDY GAS HEATER Original Filed Nov. 14, 1925 2 Sheet -Sheet 1 Lil MMZXELW uzhumxm IZM'I E RB hen tom 3513 W a M160.

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Aug. 21, 1928.

-- W. KENNEDY GAS HEATER Original Fi 14, 1925 2 Sheets-Sheet 2 E 1 z avwemto'z Z/JaZzer iaenn dy Patented Aug. 21, 1928.

UNITED STATES PATENT OFFICE.

GAS HEATER.

Application filed November 14, 1925, Serial No. 68,931. Benewed January 16, 1928.

. parts being broken away, a suitable form of heater embodying an application of my invention. Fig. 2 is a crosssectional view of the same illustrating modifications.

3, 3' indicate the front corner columns and legs of the heater, the back legs beingpreferably formed of angle iron as shown at 4.

5 indicates the top frame preferably U- shaped as shown and adapted to retain the back 6 which is preferablyof sheet metal and may be rovided with holes such as 7 Beneath the rout of the heater is preferably secured a channel 8, providing support for the forwardly extending lugs 9 of the burner 10, and above said channel 8 is secured the front portion of a plate 11, provided with a longitudinal lug 12, behind which is held upon said plate, the heavy radiant 13, the back of said radiant 13 being also supported upon the front edge of the back portion of said late which also has a longitudinal lug or r1b 15, behind which is mounted the fire-clay block or insulator 16 as shown.

Beneath the back of the plate 11 is secured the manifold 17, provided with a gas inlet 18 and outlet 19 in line with the Bunsen tube 20, of the burner 10. 21 is a funnelshaped guide for the end of the tube20, said guide being preferably secured by a lug such as 22 beneath the back 14 of the plate, thus serving to centralize the burner 20 when placing the same in position.

23 indicates a front grille or bars extending between the side posts 3, 3, and between the same and the grilles 24 in front of and which may be formed with the radiants 13, may be secured artificial fuel such as 25, the same extending upwardly over the caps 26,

which are provided with cut-away portions 27 to allow for the escape of heat rising between the artificial fuel 25.

The radiants 13 are preferabl rovided with corrugated faces 28 back 0 t e grille 24, leaving an open space above the burners 10, and the sides of the radiants are preferably cut down as indicated at 29 to allow for intercommunication of the gaseous mixture from one section to the other of the heater, each section preferably including a radiant and its grille, as well as an insulating block and burner- At the ends of the heater, additional insulating blocks such as 30 may be inserted, as shown.

lVith an arrangement such as shown, it will be readily understood that by raising the fronts of the burners, they may be lifted off the channel support'8, and conveniently replaced and-centralized by virtue of the funnel-like guide 21, and each section of the heater may be manipulated independently if desired. The products of combustion from each burner pass upwardly between the grille 24 and corrugated face 28 of the radiant, and through the openings 27 in the tops 26' The artificial fuel is preferably formed and colored to simulate natural coal and becomes incandescent when heated, thus presenting the appearance of a burning coal basket.

In the modification shown in Fig. 2, the front grille 23 is omitted, and a front angle piece 31 is preferably added at the base as shown, the same being connected to the front 11 of the plate and also to the channel 8, by any suitable means such as screws 32. The burners are also preferably provided with ribs 33 which radiate the heat from the burner, and the manifold 17 may be provided with a flange 17 secured through the back of the heater by screws 34.

The burners are preferably made of cast iron, and are preferably cutaway providing parallel paths or channels as indicated at 35. They are then cut at right angles thereto providing a series of parallel projections 36. This milling out of the cast iron provides narrow openings between parallel segments, through which the gas and air escape both upwardly and laterally through the cuts. Secondary air in the channels thus formed, mixes with the outpouring air and gas, and also tends to cool the burner, and in doing so is in turn heated immediately before combustion, the heavy metal of the burner and radiating ribs thereof serving while dissipating the heat of the burner to heat the air in the immediate neighborhood thereof. i

The nozzle or tip 37 is also preferably provided with a knife edged orifice as indicated at 38 which produces better mixture and is more efficient. The radiant 13 is preferably of substantial thickness or mass, and when heated by the flame it retains a sub stantially uniform heat through the mass thereby insuring, more perfect combustion and maximum radiation irrespective of an5 form of grille 111 front thereof.

Of course it will be uudcrstoodthat variall of said sections within an outer framework closed at the back and ends.

2. In a heater of the class described, an outer frame open at the front and top, a burner supported. in the bottom with the head thereof at the front, a radiant over said burner having a spaced apart grille-like face, fuel simulating material within said frame and retainedin front of'said radiant and over the top of the same.

3. In a heater of the class described, an outer frame open at the front and top, a burner supported in the bottom with the head thereof at the front, a radiant over said burner having a spaced apart grille-like face, fuel simulating, material within said frame and retained in front of said radiant and over the top of the same, and bars in frontof said fuel simulating material.

In testimony whereof I hereunto affix my signature.

4 WALTER KENNEDY. 

